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Browse the failure-mode index

11,416 real negative results, null findings, and replication failures in Medicine · Negative / Null Result Report. Search the index →

WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record compiled from open scholarly databases; the abstract is shown in full only where the paper is openly licensed, otherwise a short excerpt under fair use. Classifications are automated and approximate.

Negative / Null Result ReportMedicine

Shunt timing in low-weight infants in the treatment of hydrocephalus.

Chiarelli PA, Chapman N, Flyer BE et al. · 2024 · Journal of neurosurgery. Pediatrics

Objective The optimal timing of ventricular shunt placement in low-weight and preterm infants remains an unresolved topic in modern pediatric neurosurgery. Shunt placement for hydrocephalus is performed over a wide range of infant weights,…

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Negative / Null Result ReportMedicine

Lack of association between four biomarkers and persistent post-concussion symptoms after a mild traumatic brain injury.

Boucher V, Frenette J, Neveu X et al. · 2023 · Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia

Approximately 15 % of individuals who sustained a mild Traumatic Brain Injury (TBI) develop persistent post-concussion symptoms (PPCS). We hypothesized that blood biomarkers drawn in the Emergency Department (ED) could help predict PPCS.…

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Negative / Null Result ReportMedicine

Lack of Association Between Immunotherapy and Improvement of Survival for Non-small Cell Lung Cancer Patients With Hemodialysis: A Nationwide Retrospective Cohort Study.

Sawa K, Ihara Y, Imai T et al. · 2024 · Clinical lung cancer

Background The number of patients undergoing hemodialysis continues to increase globally, and the incidence of cancer is high among these patients. Immune checkpoint inhibitors are widely used in patients with advanced cancer, especially…

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Negative / Null Result ReportOpen accessMedicine

Peripheral immune system activity in young psychiatry patients.

Seizer L, Löchner J, Renner TJ · 2026 · Brain, behavior, & immunity - health

The interaction between the immune system and the central nervous system has been implicated in the development of psychiatric disorders in adult patients. However, comprehensive data regarding pediatric psychiatry are still lacking. This…

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Negative / Null Result ReportOpen accessMedicine

Implicit Bias and Recognition of Biases Among Vascular Surgeons.

Howard KA, Witrick B, Clark A et al. · 2026 · The Journal of surgical research

Introduction Implicit bias can influence behavior and decision-making, such as treatment decisions in clinical settings. Given documented Black-White disparities in vascular care, the purpose of this study was to describe the prevalence…

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Negative / Null Result ReportOpen accessMedicine

Mechanosensitivity and Adipose Thickness as Determinants of Pressure to Reach Deep Fasciae in Cervical and Thoracolumbar Regions.

Pires S, Freitas M, Pinho F et al. · 2025 · Sensors (Basel, Switzerland)

Objective We aimed to quantify the mechanical pressure required to reach the deep cervical and thoracolumbar fasciae, to examine its association with pressure pain threshold (PPT) and adipose tissue thickness, and to determine whether PPT…

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Negative / Null Result ReportOpen accessMedicine

Lack of association between breastfeeding duration and body mass index in children and adolescents - A Swedish cohort study.

Haahr Vad O, Önnestam L, Bengtsson Boström K et al. · 2025 · PloS one

Aims The aim of the study was to investigate the association between breastfeeding duration and body mass index (BMI), overweight and obesity in children during follow-up until 16 years of age. Methods Observational cohort study of mothers…

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Negative / Null Result ReportOpen accessMedicine

<i>IL4</i> Gene Variants rs2243250 and rs2243248 and Their Association with Clinical Phenotypes of Severe Asthma in the Mexican Population: In Silico Functional Analysis and Regulatory Implications.

Montoya-Delgado IB, Ochoa-García IV, Escobedo-Salcedo ZL et al. · 2026 · International journal of molecular sciences

Severe asthma (SA) is a chronic respiratory disease characterized by clinical heterogeneity and poor therapeutic response. Variants in the IL4 gene, including rs2243250 and rs2243248, have been associated with asthma susceptibility and…

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Negative / Null Result ReportOpen accessMedicine

Lack of association between food insecurity, eating disorders, and orthorexia nervosa: findings from a cross-sectional study in Lebanon.

Sacre H, Haddad C, Rizk R et al. · 2025 · Frontiers in public health

Objectives To investigate the association between food insecurity (FI), eating disorders (EDs), and orthorexia nervosa (ON) among Lebanese university students. Methods This cross-sectional study, conducted between 2021 and 2022, enrolled…

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Negative / Null Result ReportOpen accessMedicine

Lack of Association Between Sodium Intake and Cytokine Levels.

Wistrand H, Kaartinen NE, Jousilahti P et al. · 2024 · Integrated blood pressure control

Purpose The complex pathogenesis of hypertension, potentially involving inflammatory pathways, remains elusive. This study aimed to evaluate the relationship between 24-hour urinary sodium excretion and inflammatory cytokines alongside…

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Negative / Null Result ReportOpen accessMedicine

Accounting for Time-Varying Confounding in a Self-Controlled Case Series of Fluoroquinolone Treatment for Uncomplicated Urinary Tract Infections and Risk of Collagen-Related Events.

Schultze A, Ju S, Drysdale M et al. · 2025 · Pharmacology research & perspectives

We report findings from three SCCS conducted to quantify the association between fluoroquinolone (FQ) use for the treatment of uncomplicated urinary tract infection (uUTI) and tendon rupture, retinal detachment, and uveitis. Female…

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Negative / Null Result ReportMedicine

Y-Balance Test after ACL Reconstruction: The relationship with knee and hip muscle strength, ankle dorsiflexion range of motion and postural stability.

Rodrigues CAS, Albano TR, Pereira Melo AK et al. · 2024 · Journal of bodywork and movement therapies

Background Y-Balance Test (YBT) assesses postural stability. When is applied to patients after anterior cruciate ligament reconstruction (ACLR), it is not clear which variables influence its result. Objective To connect YBT and postural…

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Negative / Null Result ReportOpen accessMedicine

Associations between usual source of care characteristics and health outcomes in diabetes mellitus: a focus on medication adherence and healthy behaviors in Korea.

Lee SE, Kim CW, Bae JE et al. · 2025 · Epidemiology and health

Objectives This study investigated the associations between usual source of care (USC) characteristics, which incorporate primary care functions, and medication adherence and healthy behaviors in Korean adults with diabetes. Methods We…

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Negative / Null Result ReportOpen accessMedicine

Early recurrence of febrile seizures during acute illness: risk factors and lack of association with long-term epilepsy in a Pediatric cohort.

Jiang W, Cheng A, Wang J et al. · 2025 · Frontiers in neurology

Background Febrile seizures (FSs) are a common neurological manifestation in children, affecting 2%-5% of children worldwide. While acute-phase recurrences during the same febrile illness are frequent, their risk factors and implications…

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Negative / Null Result ReportMedicine

Lack of association between nonalcoholic fatty liver disease and intracerebral hemorrhage: A community-based cohort study.

Wu J, Guo J, Wang A et al. · 2023 · Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia

Background The association between nonalcoholic fatty liver disease (NAFLD) and intracerebral hemorrhage (ICH) remains unclear. This study aimed to investigate whether NAFLD and its severity predict incident ICH. Methods Participants free…

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Negative / Null Result ReportMedicine

Insulin resistance and beta-cell dysfunction in adults with different patterns of diet: a cross-sectional study in north-western Tanzania.

Malindisa EK, Dika H, Rehman AM et al. · 2025 · European journal of clinical nutrition

Background The diabetes burden in sub-Saharan Africa is rising, but there is little African data on associations between diet, insulin resistance, and beta-cell dysfunction. Objective We investigated the association between dietary…

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Negative / Null Result ReportOpen accessMedicine

Lack of association between prior or concurrent malignancies and overall survival in gastroesophageal cancer: evidence from a large European single-center cohort.

Puhr HC, Berchtold L, Zingerle L et al. · 2026 · Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico

Background History of malignant disease is a common exclusion criterion in clinical cancer trials, yet data on the impact of cancer survivorship on outcome in gastroesophageal cancer patients are scarce. Methods Retrospective association…

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Negative / Null Result ReportOpen accessMedicine

Impact of Prediabetes on In-Hospital Mortality and Clinical Outcomes in Acute Pancreatitis: Insights from a Nationwide Inpatient Sample.

Dakkak T, Silin N, Mahmood R et al. · 2025 · Journal of clinical medicine

Background/Objectives : Prediabetes is characterized by insulin resistance and systemic inflammation, which may increase susceptibility to acute pancreatitis (AP). However, limited data exist on how prediabetes influences in-hospital…

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Negative / Null Result ReportOpen accessMedicine

Association of Gallstone and Polymorphisms of ABCB11 Gene among the Adult Patients in Iran: A Case Control Study : Gallstone and ABCB11 Gene.

Yektamoghaddam S, Forghanifard MM, Zrrinpour V et al. · 2025 · Galen medical journal

Background Background: Gallstone disease (GSD) is a prevalent gastrointestinal condition influenced by genetic, environmental, and dietary factors. The ATP-binding cassette subfamily B member 11 (ABCB11) gene, encoding the bile salt export…

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Negative / Null Result ReportOpen accessMedicine

Impact of Parathyroidectomy on Vascular Stiffness: Exploring Pulse Wave Velocity and Renal Resistive Index.

Huber A, Pasquier T, Demarchi M et al. · 2026 · The Journal of clinical endocrinology and metabolism

Context Primary hyperparathyroidism (PHPT), characterized by elevated parathyroid hormone (PTH) and hypercalcemia, has been implicated in vascular calcification and increased arterial stiffness. Carotid-femoral pulse wave velocity (PWV) is…

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Negative / Null Result ReportOpen accessMedicine

Ejaculate Ejection by Female Fruit Flies Does Not Correlate With Mating Latency or Male Presence, Irrespective of How Ejection Is Measured.

Sanghvi K, Todorova B, Sepil I · 2025 · Ecology and evolution

Sexual selection operates across pre- and post-mating episodes, driven by intra-sexual competition and inter-sexual choice for mates or gametes. While these episodes can act in the same direction, this is not always the case; for example,…

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Negative / Null Result ReportOpen accessMedicine

Dissociation between the expression of cGAS/STING and a senescence-associated signature in colon cancer.

Al Shboul S, Abu Al Karsaneh O, Alrjoub M et al. · 2025 · International journal of immunopathology and pharmacology

Objective The effect of the cGAS/STING pathway on antitumor immunity and its connection to senescence in vivo necessitates further investigation. Introduction Cellular senescence and its secretory phenotype (the SASP) are implicated in…

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